Fixing linux compilation problems.

Common/fileutil.cpp

@@ -7,7 +7,7 @@
 #define _CRT_SECURE_NO_WARNINGS     // "secure" CRT not available on all platforms  --add this at the top of all CPP files that give "function or variable may be unsafe" warnings
 #define _CRT_NONSTDC_NO_DEPRECATE   // make VS accept POSIX functions without _
 #pragma warning (disable: 4996)     // ^^ this does not seem to work--TODO: make it work
-#define _FILE_OFFSET_BITS = 64      // for ftell64() in Linux
+#define _FILE_OFFSET_BITS 64      // for ftell64() in Linux
 
 #ifndef UNDER_CE    // fixed-buffer overloads not available for wince
 #ifdef _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES  // fixed-buffer overloads for strcpy() etc.

Math/Math/Matrix.cpp

@@ -3916,7 +3916,7 @@ namespace Microsoft { namespace MSR { namespace CNTK {
 
         foreach_coord (i, j, us)
             // if (isnan (us(i,j)))
-            if (isnan (us(i,j)))
+	  if (::isnan (us(i,j)))
             {
                 fprintf (stderr, "hasnan: NaN detected at %s (%ld,%ld)\n", name, i, j);
                 return true;
@@ -3936,7 +3936,7 @@ namespace Microsoft { namespace MSR { namespace CNTK {
         foreach_coord (i, j, us)
         {
             auto val = us(i,j);
-            if (isnan (val) || !isfinite (val))
+            if (::isnan (val) || !isfinite (val))
                 n++;
         }
         return n;